Adding rim weight?

Yo-Yo Mods and Maintenance
1

I was wondering if there is a way to add rim weight to a yoyo, but not permanently. I’ve tried large O-rings, but they get off center and cause vibe. Is there any way to do it on a metal yoyo?

My YYF JK feels like it could use some rim weight, but I don’t know how I can do it reversibly and effectively.
Thanks.

2

If you get the right size fat o-ring they won’t shift around, assuming the rims are suitable to hold them in the first place. I’ve never had a problem w/using them.